Synchronous lifting control system for hydraulic cylinders

Abstract

The invention discloses a synchronous lifting control system for hydraulic cylinders. The synchronous lifting control system comprises a hydraulic station, a double-pole electromagnetic overflow valve, a valve installation support, two branch oil ways and an electrical system. Speed regulation valves, three-position four-way electromagnetic valves and the hydraulic cylinders are sequentially arranged on the two branch oil ways from front to back. Each speed regulation valve is a two-way flow control valve formed by connecting a throttling valve and a uniform-pressure drop valve in series. A real-time balance monitoring device is added to the electrical system, and therefore once unbalance happens, corresponding actions are executed. The hydraulic cylinders responsible for lifting and putting down a trash compressor box body can be independently controlled, the cylinders do not interfere with each other during work, and accuracy is improved. In addition, flow flowing through the speed regulation valves is not influenced by changes of loads, the movement speeds of the hydraulic cylinders are not changed when the loads are changed, and it is automatically ensured that the trash compressor box body is stably lifted and put down; meanwhile, the defect that the human cost is increased when a box body severely inclines and manual regulation is needed is overcome, and safety is improved.

Description

technical field [0001] The invention belongs to the field of hydraulic control systems, and in particular relates to a hydraulic cylinder synchronous lifting control system. Background technique [0002] With the urbanization of our country, the composition of urban domestic waste has undergone great changes, the density of garbage has been decreasing, and the compressibility has increased. The workload of garbage disposal in cities has become more and more heavy. The traditional way of manual garbage collection is adopted. , time-consuming and labor-intensive, and inefficient. Garbage compactors have begun to receive attention and are used more and more widely. [0003] At present, the cabinet of the garbage compressor uses two hydraulic cylinders to realize lifting and lowering. Among them, the hydraulic system is only controlled by two sets of three-position four-way solenoid valves. This method cannot realize synchronous control of the lifting hydraulic cylinders, res...

AI Technical Summary

Problems solved by technology

[0003] At present, the cabinet of the garbage compressor uses two hydraulic cylinders to realize lifting and lowering. Among them, the hydraulic system is only controlled by two sets of three-position four-way solenoid valves. This method cannot realize synchronous control of the lifting hydraulic cylinders, resulting in The cabinet is seriously tilted, and manual adjustment is required to solve the tilt problem

In practice, the inclination of the box is controlled by manually adjusting the stroke of the lifting hydraulic cylinder. The workload is large, the process is cumbersome, and the adjustment accuracy depends on visual inspection. The error is large and it is easy to cause damage to the machine parts.

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